<template>
  <div class="container">
    <div class="app-container" style="padding:50px 150px;">
      <el-tree default-expand-all :data="depts" :props="defaultProps">
        <!-- 节点结构 -->
        <!-- v-slot="{ node, data }" 只能作用在template -->
        <template v-slot="{ data }">
          <el-row style="width: 100%">
            <el-col :span="18">{{ data.name }}</el-col>
            <el-col :span="6">
              <el-row>
                <el-col :span="12" style="text-align: left;">
                  {{ data.managerName }}
                </el-col>
                <el-col :span="12" style="text-align: right;">
                  <!-- $event 实参 表示类型 -->
                  <el-dropdown @command="operateDept($event, data.id)">
                    <!-- 显示区域内容 -->
                    <span>
                      操作<i class="el-icon-arrow-down" />
                    </span>
                    <!-- 下拉菜单选项 -->
                    <el-dropdown-menu slot="dropdown">
                      <el-dropdown-item command="add">添加子部门</el-dropdown-item>
                      <el-dropdown-item command="edit">编辑部门</el-dropdown-item>
                      <el-dropdown-item command="del">删除</el-dropdown-item>
                    </el-dropdown-menu>
                  </el-dropdown>
                </el-col>

              </el-row>
            </el-col></el-row>
        </template>
      </el-tree>
    </div>
    <AddDept ref="addDept" :show-dialog.sync="showDialog" :current-node-id="currentNodeId" @updateDepartment="getDepartment" />
  </div>
</template>
<script>
import { getDepartment, delDepartment } from '@/api/department'
import { transListToTreeData } from '@/utils'
import AddDept from './components/add-dept'
export default {
  name: 'Department',
  components: {
    AddDept
  },
  data() {
    return {
      currentNodeId: null, // 存储当前点击的id
      showDialog: false,
      depts: [{
        name: '传智教育',
        children: [
          { name: '总裁办' },
          { name: '行政部' },
          { name: '财务部' }
        ]
      }],
      defaultProps: {
        children: 'children',
        label: 'name'
      }
    }
  },
  created() {
    this.getDepartment()
  },
  methods: {
    async getDepartment() {
      const result = await getDepartment()
      this.depts = transListToTreeData(result, 0)
    },
    operateDept(type, id) {
      if (type === 'add') {
        // 添加子部门
        this.showDialog = true // 显示弹层
        this.currentNodeId = id
      } else if (type === 'edit') {
        // 编辑部门场景
        this.showDialog = true
        this.currentNodeId = id // 记录id 要用它获取数据
        // 更新props- 异步动作
        // 直接调用了子组件的方法 同步的方法
        // 要在子组件获取数据
        // 父组件调用子组件的方法来获取数据
        this.$nextTick(() => {
          this.$refs.addDept.getDepartmentDetail() // this.$refs.addDept等同于子组件的this
        })
      } else {
        // 删除部门
        this.$confirm('您确认要删除该部门吗').then(async() => {
          await delDepartment(id)
          // 提示消息
          this.$message.success('删除部门成功')
          this.getDepartment()
        })
      }
    }
  }
}
</script>
<style scoped>
</style>
